2026 NPPES data Glaucoma Specialist (Ophthalmology) Physician NPI 1699193367 MD
Verify on CMS →

IGOR BUSSEL, MD

Glaucoma Specialist (Ophthalmology) Physician in FULLERTON, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
2K
Medicare Part D claims · 388 beneficiaries · Glaucoma Specialist (Ophthalmology) Physician avg: 3K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$458.93
14 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: IGOR BUSSEL, MD is a Glaucoma Specialist (Ophthalmology) Physician ([object Object]) practicing in FULLERTON, California with a Medicare Part D prescribing footprint of 2K claims across 388 beneficiaries — 48% brand-name prescribing . Their CMS MIPS Final Score of 75/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $458.93 across 14 transactions are disclosed under CMS Open Payments (Sunshine Act).

What the federal data shows

IGOR BUSSEL, MD reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 1,861 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
2K
Part D claims, 2023
52%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

IGOR BUSSEL, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

75 15th percentile higher than 15% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

IGOR BUSSEL, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

IGOR BUSSEL, MD at a glance

Below national average

NPI registry status

Active

Issued 03/31/2014

NPI 1699193367

Primary specialty

Glaucoma Specialist (Ophthalmology) Physician

Rare

354 US NPIs in this specialty

Medicare Part D claims

1,861 37% vs specialty avg

2023 prescription claims

Specialty avg: 2,962

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Glaucoma Specialist (Ophthalmology) Physician compares to other specialties among California providers

California providers

Glaucoma Specialist (Ophthalmology) Physician share within California

1. Glaucoma Specialist (Ophthalmology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Glaucoma Specialist (Ophthalmology) Physician share within California

Medicare quality performance — MIPS

IGOR BUSSEL, MD's 2023 MIPS final score plotted against the Glaucoma Specialist (Ophthalmology) Physician national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Glaucoma Specialist (Ophthalmology) Physician) — 75/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

IGOR BUSSEL, MD is a Glaucoma Specialist (Ophthalmology) Physician provider practicing in FULLERTON, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1699193367. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

IGOR BUSSEL, MD appears in the CMS NPPES registry as a Glaucoma Specialist (Ophthalmology) Physician provider holding MD credentials at 270 LAGUNA RD STE 100, FULLERTON, CA, 92835, with a listed phone of (714) 525-2375. NPI 1699193367 was issued on 03/31/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUSSEL most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,861 prescription claims written by this provider, covering 388 Medicare beneficiaries and totaling roughly $250K in drug spend, split 48% brand-name and 52% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Glaucoma Specialist (Ophthalmology) Physician is a narrow specialty nationwide, with 354 enrolled providers across 42 states and an average of 2,962 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

270 LAGUNA RD STE 100
FULLERTON, CA 92835

Provider Details

NPI 1699193367
Specialty Glaucoma Specialist (Ophthalmology) Physician
Credentials MD
Gender Male
NPI Issued 03/31/2014

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
Avg: 83.1

Reporting: Individual

Hospital and facility affiliations

Facilities where IGOR BUSSEL, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CLIFFORD M TERRY M D INC
FULLERTON, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for IGOR BUSSEL, MD. Source: openpaymentsdata.cms.gov.

Total received

$459

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to IGOR BUSSEL, MD. To verify IGOR BUSSEL, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

IGOR BUSSEL, MD — brand share 48.0%
Specialty average (est.)

48% brand-name claims vs 52% generic, on 1,861 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,861
Total Claims
$250K
Total Drug Cost
388
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,891
Total Day Supply
80,448
Brand vs Generic
48% brand / 52% generic
Brand Drug Cost
$202K
Generic Drug Cost
$47K
Antibiotic Claims
19

Patient Demographics

Average Patient Age
77.0 years
Avg HCC Risk Score
1.30
Gender Split
61% female / 39% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Latanoprost
385
Prednisolone Acetate
192
Ofloxacin
160
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
145
Vyzulta
Latanoprostene Bunod
89
Rhopressa
Netarsudil Mesylate
85
Rocklatan
Netarsudil Mesylat/Latanoprost
57
Lumigan
Bimatoprost
56
Dorzolamide Hcl
54
Simbrinza
Brinzolamide/Brimonidine Tart
54

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Glaucoma Specialist (Ophthalmology) Physician Overview

How IGOR BUSSEL, MD fits within the Glaucoma Specialist (Ophthalmology) Physician landscape nationally.

354
Glaucoma Specialist (Ophthalmology) Physician Providers in US
42
States with Glaucoma Specialist (Ophthalmology) Physician
2,962
Avg Claims per Provider

IGOR BUSSEL, MD's 1,861 claims are below the specialty average of 2,962.

Nearby Glaucoma Specialist (Ophthalmology) Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as BUSSEL.

Compare Glaucoma Specialist (Ophthalmology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IGOR BUSSEL, MD's specialty?
IGOR BUSSEL, MD specializes in Glaucoma Specialist (Ophthalmology) Physician and practices in FULLERTON, California. Credentials: MD.
How much does IGOR BUSSEL, MD prescribe under Medicare Part D?
In 2023, IGOR BUSSEL, MD wrote 1,861 Medicare Part D claims totaling $250K in drug costs for 388 beneficiaries.
What is IGOR BUSSEL, MD's Medicare quality score?
IGOR BUSSEL, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is IGOR BUSSEL, MD located?
IGOR BUSSEL, MD is located at 270 LAGUNA RD STE 100, FULLERTON, CA, 92835. Phone: (714) 525-2375.
What is IGOR BUSSEL, MD's NPI number?
IGOR BUSSEL, MD's National Provider Identifier (NPI) is 1699193367, issued on 03/31/2014.
Does IGOR BUSSEL, MD prescribe more brand-name or generic drugs?
IGOR BUSSEL, MD's prescribing is 48% brand-name and 52% generic drugs by claim count, with $202K in brand drug costs.
How many Glaucoma Specialist (Ophthalmology) Physician providers are there in the US?
There are 354 Glaucoma Specialist (Ophthalmology) Physician providers across 42 states in the US. The average Glaucoma Specialist (Ophthalmology) Physician provider writes 2,962 Medicare Part D claims per year.
What drugs does IGOR BUSSEL, MD prescribe most often?
Based on 2023 Medicare Part D data, IGOR BUSSEL, MD's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Ofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does IGOR BUSSEL, MD accept Medicare?
IGOR BUSSEL, MD appears in CMS Medicare data with 1,861 Part D claims and 388 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IGOR BUSSEL, MD's credentials?
IGOR BUSSEL, MD's NPI is 1699193367 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology